1/* $NetBSD: pam_end.c,v 1.4 2023/06/30 21:46:21 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 5 * Copyright (c) 2004-2017 Dag-Erling Sm��rgrav 6 * All rights reserved. 7 * 8 * This software was developed for the FreeBSD Project by ThinkSec AS and 9 * Network Associates Laboratories, the Security Research Division of 10 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 11 * ("CBOSS"), as part of the DARPA CHATS research program. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. The name of the author may not be used to endorse or promote 22 * products derived from this software without specific prior written 23 * permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 38#ifdef HAVE_CONFIG_H 39# include "config.h" 40#endif 41 42#include <sys/cdefs.h> 43__RCSID("$NetBSD: pam_end.c,v 1.4 2023/06/30 21:46:21 christos Exp $"); 44 45#include <stdlib.h> 46 47#include <security/pam_appl.h> 48 49#include "openpam_impl.h" 50 51/* 52 * XSSO 4.2.1 53 * XSSO 6 page 42 54 * 55 * Terminate the PAM transaction 56 */ 57 58int 59pam_end(pam_handle_t *pamh, 60 int status) 61{ 62 pam_data_t *dp; 63 int i; 64 65 ENTER(); 66 if (pamh == NULL) 67 RETURNC(PAM_BAD_HANDLE); 68 69 /* clear module data */ 70 while ((dp = pamh->module_data) != NULL) { 71 if (dp->cleanup) 72 (dp->cleanup)(pamh, dp->data, status); 73 pamh->module_data = dp->next; 74 FREE(dp->name); 75 FREE(dp); 76 } 77 78 /* clear environment */ 79 while (pamh->env_count) { 80 --pamh->env_count; 81 FREE(pamh->env[pamh->env_count]); 82 } 83 FREE(pamh->env); 84 85 /* clear chains */ 86 openpam_clear_chains(pamh->chains); 87 88 /* clear items */ 89 for (i = 0; i < PAM_NUM_ITEMS; ++i) 90 pam_set_item(pamh, i, NULL); 91 92 FREE(pamh); 93 94 RETURNC(PAM_SUCCESS); 95} 96 97/* 98 * Error codes: 99 * 100 * PAM_BAD_HANDLE 101 */ 102 103/** 104 * The =pam_end function terminates a PAM transaction and destroys the 105 * corresponding PAM context, releasing all resources allocated to it. 106 * 107 * The =status argument should be set to the error code returned by the 108 * last API call before the call to =pam_end. 109 */ 110